Needle-pointing machine



R. A. HUTZHINSON NEEDLE POINTING MACHINE Aug. 7, 19 23. 1,464,203

Filed July '7, 1922 lNVENTOR IBJGHARD A. I-I'LTTCHINSON, OF KETHILEVQBTE, NEW I i E. WILSON, D1 BELLEVILLE, NEEJ JERSEY.

ail-n ASSIGNOB TO BGBEET NEEDLE-PDINTING I'EA-LCI'EINE.

Application filed July 7, race.

concern To aZZ whom it W1; 1 RICHARD A. Huron- Be known INSQII, citizen of the United States, residing at hIenilwoi-th, 1n the county of Union and oi llew Jersey, have invented certain an improved construction of pointing ma chine; and the invention has reference, more 'iartioularly, to a novel machine for sharpening: pointed articles, such as phonograph needles, etc.

The invention has for its principal object to provide novel and very simple means for driving a rotatable grinding; member d needle chuck spindle in mutual rela taper or finished point; and, furtheri to provide a novel means for mountlng e needie chuck spindle so that tension may '1 applied thereto to compel the same to press the work ogieratively against the grindinn member.

The invention has for a further object to provide amachine in which the parts have been reduced to a minimum so as to render the same compact, cheap to produce, and little likely to get out of order, and yet very tiicient in the performance of the work for which it is designed.

Other objects of the present invention, not at this time more particularly enumerated, will be clearly understood from the following detailed description of the same.

With the various objects of the invention in view, the same consists, primarily in the novel construction of pointing machine hereinafter set forth; and the invention consists, furthermore, in the novel arrangements and con'ibinations of the various devices and giiarts, well as in the details oil. the con Serial no. evaeie.

struction of the same, all 01 which will be more fully described in the following specification, and then embodied in the appended claims.

The invention is clearly illustrated in the accompanying drawings, in which Figure l is a fron elevation of the novel pointing; machine, made according to and embodying the principles of the present invention. Figure 2 is a top or plan view of the same. Figure 3 is a detail view of the needle holding chuck of the chucl; spindle. Figure l; is a detail view of a modified form of the needle holding chuck. Figure 5 is a detail view of modified form of grinding member for use with the pointing machine.

.dimilar characters of reference are employed in all of the above described views, to indicate corresponding parts.

Referring now to said drawings, the reference-character 1 indicates the complete pointing machine, made according to and embodyi the principles or" the present invention, same comprising, a suitable supportim, standard 2 provided at its lower end with an open yoke-portion 3 adapted to embrace the edge of a benchor table l for the purpose securing the machine in place ready to he operated. The free end of the lower arm of said yoke-portion is provided with a thumb-screw 5, for en 'auing' the'bench or table l to clamp the said yokeportion infir -d relation thereto.

The upper free end of said supporting standard 2 is provided with a horizontal bearing portion 6, in which is rotatably mounted a shaft 7, upon the rearward end of which is fizred a suitable crank-handle S for rotating said shaft, and upon the forward end of which is fixed a driving gear 9.

Said driving gear 9 is or" peculiar construction or design, in that it comprises a comparatively thin dish-shaped main body providing an outwardly and forwardly inclined or flared annular flange 10, in the periphery of which are cut the gear teeth 11, so that the latter project angularly outward.

Said supporting standard 2 is provided, below the mounting oi said driving gear 9,

with a pair of oppositelyand laterally extending arms 12 and 12, having forwardly curvedfrec ends 13 fi-r terminating in r The geer we of seicl bosses are alineel With gear teeth 11. Q l V v rearwarlcll projecting acla arm 13 Q an upwartll terniinatin in a boss with and behind r f A; jonrnaled sear 9.

is the thre teeth ll or she. oriving n ';;:i M on tflLOhgii sDiiCi 00s: s

n 1 1 j w 24: of COIllfiZll turn f s for lock ng said con- 1 LSSlI'Qd adjusted posi 2% is raise p-ioviclee i 27 for n ianigula ing 'hrnst A taste- :wetl to extend vertically np- L k the slotted. hea 'l shank and screw 28 wastlv throng toot-piece of sa kl carrying nest look the in fixed acljn said grinding Wheel to properl grinclin face 21". Since the er I ore oost air rincling Wheel and its gear a-linecl with the o f teeth 11 of the driving fliOllQWS that a substantial variaangular disposition of the princh me; be atteineql without danger ng the operative meshing and when of said spur with the 14- by means of "lly elf-set verl carrying post 30 provicletl at its upper footpiece 29 is an cuts Rotatably mounted in said bearing member ,ll is spindle provided at its forward end with a chuck member 33 comprising the externally threaded split soel tet sle re 84 providing jaws for gripping the shank of the needle 35 tobe polnteclr The said sleeve 34; receives the" nut-piece 36, Which is aglapte when screweclhonie thereon to close s itjaws about the needleshank with grip- 5; effect Secured upon the rear entl of spindleBQ is a spur gear 37 which m she's Withthe teeth 11 of saiclclriving H The'foot-pieeQQ of saidcarryingg postfiQis pivoted to said boss 14" by means of apiyot pin er st-nd- 38 extending axially through said boss ontlthrough said not pieeli As be understood from an in spectienetthe drawings, the pivotalrnove ment of seiglcerrying post and associated 'tieal bosses i l and 1a; The vertical axes.

i with horizontal bearing member 31. r

the drawings, the clish-shaped mounting of the grinding-z of the needle chucir spindle manner t" they mutually incl front of said d ving Qonseenentq the face of the 'ntl 'heel is properly disposed. to be en cl by the point of rclly from the j 1e disposition Wheel relative to the lo of the needle 3&3 V be 3; the swinging; s a

needle 35 pi needle cheek,

L A Jstrnent of y'ing p l5 in orderto se present nchng Wheel relative to the in o J w e us i it OTGQ of tener. Slig tadjust- O s grinding heel lGlEttl'rQ to a needle point may also be innmcle by setting: out or retract ding wheel by longitudinally sclnn 7 L her of the grinding Wheel by :table thrust bearing ,e chuck sninclie beino free ts connection with the ens nward theneei e point 35 li be ieltlingly nressecl the se ne to ass re the proper ato gear engages the and. th grinding saicl clri t g t follows that the i ated one (lireetion wheel is rotatedin thereby pro-elusiv the -i also a e ieadily understood that,

e ehnelz sgginclle is mounted so as to of a swinging; movement in either ection, itis ery easy to swing the 'ehncs. 1 v a rally to carryhe needle away froni the face of the grinding heel so that the-chuck he released, the sharpened needle removed, and a needle to be operated upon rei will be unclerstooel from an inspection the of the face of ne point of the latter a pulling tension to V est the of the grintt w; ,M 411 av/13 m.

placed in secured by the chuck, so that when the spindle is released the spring 39 will illl swing the same inwardly to posi- V as e face or the Y A ince it merely re 1e needle be pushed 1. ill (1* 'erring to Figure of the drawings have illustrated therein a modified form of grinding Wheel race. In this conetruc tion tne grinding Wheel 21 is provided with an aunularly concave faceportion 4-3 Which "when applied to the needle pointproduces a convex taper instead o straight taper. i I

From'the above description the construction as well as the principles operation of my novel pointing machine Will be clear Without necessit a or {going into further dell, it will be apparent, that the machine made up very few parts so related as to be easily adjustable to produce the desired taper of the point ground thereby; and involri little mechanism liltely to get out oforder.

am aware that some changes may be made in the several arrangements and con'ibinations of the devices and parts as ell in the details of the construction of the same without departing" from the scope of 1. In a device of the kind described asupporting frame, a dish-shaped driving rotatably mounted upon said frame, carrying means supported upon said frame so as to be capable of a swinging adjust ment in a horizontal plane a grinding Wheel provided with an arbor journaled in said carry s, spur gear on said arbor n ineene agement With one side oi said said frame to swing chuck spindle journg means, chueir -neans connectec with said spindle for sup- -d rotatine an article to be ooint- I s ndie in :ieshed p L; i

to said grinding Wheel 2. In a device 0'' the r nd describe a su frame di hap d driving 5 tably mountec upon or rotating said driv and laterallv enten nected with said frame below i .5 gear; sale respective; terminating in i'lCfll bosses centrally alin bone ii the L. l

warm;

inclined teeth or said orrving; gear at opposite sides of the letters carry" inn means supported upon the vertical boss ne arm so as to'be canal le of a swing;

ing adjustment in a horizontal plane, a grinding wheel provided with an arbor jom'naled in said carrying) n'leans, a spur gear on said arbor in meshed engagement with said driving" gear a se en-dear ans pivotally supported upon the vertical boss of the opposite to swi in a horizontal plane a chuc z'snindle nailed in said second carrying; means a cruel inians connected with spindle for sugand rotating an article to be point ou a spur on. said spindle nu shed engagement with said driving ar: and means :t'or swi ing said nd can rvin means to press said article to be oointed in operative relation to said grinding Wheel.

3.11 1 a device of the kind desc1ibed a supporting frame, a dish-shaped driving rotatably mounted upon id 1 me, for rotating said driving near, oppositely and laterally extending; connected with said frame below said din-lug gear said arms respectively terminating in vertical bosses centrally alined beneath the outwardly inclined teeth of said driving gear at opposite sides of the latter, a carry- V opei to swing in a horizontal plane, a

in said second carrying means, a chuck means connected with said spindle for supporting and rotating an article to be pointed, a spur gear on said spindle in meshed gagement with said driving gear, spring a r swinging said second carry ng s to press said 21 icle to be pointed in so as to be capable of a swinging adjust,

ment in a horizontal plane, a grinding wheel provided with an arbor journaled in said carrying means, a spur gear on said arbor in meshed engagement with one side of said driving gean-a second carrying means pivotally supported upon said frame chuck spindle journaled in said second carrying means a chuck means connected wi" a said spindle for supporting and rotatingan article to be pointed, a spur gear on said spin-- die in meshed engagement with the opposite side or said driving gear, spring means, for swinging said second carrying means to press said article to be pointed in operative relation to said grinding wheel, andv clamp means connected with said frame for securing the same to a table or the like.

In a device of the kind described, a supporting frame, a dish-shaped driving gear rotatably mounted upon said frame, means for rotating said driving gear, a grinding wheel having an arbor, a spur gear on said arbor meshing with one side of said driving'gear, means connected 'with said framefor supporting said arbor to project said grinding wheel obliquely in front of said driving gear, a chuck spindle, a needle holding chuck means on said spindle, a spur gear on said spindle meshing with the'opposite side of said driving gear, a. swing means supported by said frame for mounting said spindle, and spring means for swinging said swing means to press a needle tive rela ion to said grinding wheel,-

vheld by said chuck means in operative engagement with saidgrindinor wheel,

6. In a device of the kind described, a supporting frame, a dish-shaped driving gear'rotatably mounted upon said frame, means for rotating said driving gear, a grinding wheel having an arbor, a spur gear'on said arbor meshing h one side of said driving gear, means connected with said frame for supporting said arbor to project said'grinding wheel obliquely in front of said driving gear, achuckspindle, a needle holding chuck means on said spindle, spur gear on said spindle meshing: with the opposite side of said driving: gear, a swing means supported by said frame for mounting said spindle, spring means for swinging said swing means to press a needleheld by said chuck means in OQGZQQClVG en g 'aqement with said grinding wheel, and clamp meansconnected with said frame tor securing the same to a table or the like.

'7. In a device of the kind described. supporting frame, a grinding wheel having an arbor, a spur-gear on said arbor, bear .ing standard pivotally connected with said frame for iournalinp; arbor. meanstor locking said bearing standard to determine set forth above I have hereuntoset my hand this 29th day of June, 1922. V

RI HARD A. nuronmson.

Witnesses GEORGE D. 'RIOHARDS, Roe'r. E. WILSON. 

